What are mutable variables in programming?

What are mutable variables in programming?

Mutable variables are variables whose values can be changed after they are created. For example, in Python, a list is mutable.

Can you give me an example of a mutable variable?

Sure! In Python, if you have a list like my_list = [1, 2, 3], you can change it to my_list[0] = 10, making it [10, 2, 3].

What about immutable variables?

Immutable variables, like strings or tuples in Python, cannot be changed after they are created. For example, if you have a string s = 'hello', you can't change it directly.

Why would I use mutable variables instead of immutable ones?

Mutable variables are useful when you need to change data frequently, like in lists or dictionaries, while immutable variables provide safety from accidental changes.